i did a 107 big bore upgrade this past winter and have enjoyed the the increase in performance a lot.
i chose the woods knight prowler 777 cams and i would have to say the idle is awesome to listen to. my wife made the comment once while it was warming up, "why does it idle so bad" ha ha ha
anyhow i delayed in doing the heads until this winter and have been bouncing back and forth on which way to go.
fuelmoto has a great reputation and i have been pleased doing business with them. $879 for a "level B head" exchanged. the valve sizes are 1.9 in and 1.6 ex along with the beehive springs(.600 lift) and some porting and seat work.
screamin eagle pro kompressor heads are very similar but price is lower.
retails for $599 intake is 1.875 and the exhaust is 1.615 beehive springs allow .585 lift and the additional compression.
my research has me believing that the woods 777's like additional compression based on the dyno runs from fuelmoto and others that are knowledgeable in this area.
this is why i am considering the heads from screamin eagle: when i picked up my 107 kit at fuelmoto i was sure i was getting the 10.5:1 cp pistons. that's not what i took home.bob insisted that i go with the 10.25:1's because i did not have the heads done at that time and that i would not like the results with stock heads if i were to take home the 10.5:1's. he said that when i decided to do the heads there would be things we(fuelmoto) could do to "make up" for the lower compression pistons. not completely happy about that but i left for home with the 10.25:1's
so with all that being said i like the idea of the screamin eagle heads(price, compression increase and the kicker: the screamin eagle logo on the heads.
again i want to say that fuelmoto is a great company to deal with and am very happy with their service so nothing wrong there.
i am just an enthusiast who likes to go a little faster than the average rider.
and if i can look good doing it and for a smaller price why not.
what do you all think? what direction would you go?

 

lots of porters out there,do your homework

 

I have a set of new heads with an S&S logo on them in the for sale section. I'm going bigger..

 

nice heads,why are you not using them? how big are you going?

 

117" The plan is getting the 89cc S&S heads now. This changed a lot and I have T2 cases ready for 4.125 cylinders so I figured I would go for it.

 

could very easily open the 79cc chamber to 89cc,with a little work,the S&S heads you have will support a 117" with no prob

 

Like Kirby says, lots of head porters out there and for $599 you can have your heads ported, larger valves, machined for compression releases, competition valve job, etc. No comparison between a properly ported set of heads and the off the shelf HD product. Do your homework and talk to other head porters, set up a spreadsheet to compare scope of work offered by each and cost and you can make an apples to apples comparison and select a porter to work with.

 

Kompressor heads are literally stock heads milled with springs. I verified this years ago.

 

what does stock heads really mean? i have 96 heads now. doesnt the kompressor heads have larger valves than this with higher compression. in addition to beehive springs

 

Stock head castings and porting. Springs to allow rev. Valves might be different than stock don't remember. Decked to raise compression.